Isi Naisarani (born 14 February 1995) is a professional rugby union player who represents in international rugby. He is currently signed with the Western Force. He first played Super Rugby for the Western Force in 2017, before joining the Brumbies and Rebels. In 2021, he moved to Japan to play for Shizuoka Blue Revs. His usual position is No. 8. Born in Fiji, he qualified for Australia by residency.